ORBLUE Silicone Stretch Lids, 6-Pack of Various Sizes Silicone storage covers come in 6 sizes (see Description below) so there's always one that fits They're environmentally-friendly, eliminating the need to repeatedly buy expensive plastic wrap Silicone tops are round yet stretchy enough to fit snugly over odd-shaped mugs, pots, cups & bowls Microwave-safe & heat-resistant to 450 F so you can quickly reheat & enjoy delicious leftovers Features non-toxic, BPA-free, dishwasher-safe & leak proof, air-tight seal so foods stay fresh!